CN212217117U - Boring cutter for boring on back of workpiece - Google Patents

Boring cutter for boring on back of workpiece Download PDF

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Publication number
CN212217117U
CN212217117U CN201922417869.7U CN201922417869U CN212217117U CN 212217117 U CN212217117 U CN 212217117U CN 201922417869 U CN201922417869 U CN 201922417869U CN 212217117 U CN212217117 U CN 212217117U
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China
Prior art keywords
cutter
boring
groove
tool
bar
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CN201922417869.7U
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Chinese (zh)
Inventor
梁继超
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Shaanxi Xixian New District Fuheng Electrical Equipment Co ltd
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Shaanxi Xixian New District Fuheng Electrical Equipment Co ltd
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Priority to CN201922417869.7U priority Critical patent/CN212217117U/en
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Abstract

The utility model provides a boring cutter for work piece back bore hole belongs to the machining cutter and makes technical field, and it specifically includes the cutter arbor, and the one end of cutter arbor is provided with connecting groove, connecting groove is I-shaped groove or forked tail type groove, the guide arm passes through the non-edge of a knife end joint of I-shaped groove or forked tail type groove and tool bit, the cutter arbor is connected the structure that forms the cross section for the L type with the tool bit. Utilize the utility model discloses a boring cutter can bore when carrying out the bore hole to the work piece back and target in place, reaches the designing requirement in hole, and machining precision is high.

Description

Boring cutter for boring on back of workpiece
Technical Field
The utility model belongs to the technical field of the machining cutter makes, concretely relates to boring cutter for work piece back bore hole.
Background
When the boring is processed in a numerical control mode, the processing condition of the back of a workpiece cannot be directly observed in the processing process, when the back of the workpiece is bored by using a traditional boring cutter, the boring cutter is limited by the structure and the size of the boring cutter, the boring of the hole on the back of the workpiece is often not in place, the dimensional tolerance of the hole cannot be guaranteed, the design requirement cannot be met, the final processed finished product is unqualified, the clamping of a cutter rod and a cutter head on the traditional boring cutter is unstable, the cutter head can shake during processing, the inner wall of the processed hole is rough, the requirement on the smoothness cannot be met, subsequent manual polishing is needed, and the processing efficiency is low.
SUMMERY OF THE UTILITY MODEL
To the restriction of boring cutter structure and size among the above-mentioned prior art, the hole boring to the work piece back is not in place, can not guarantee the dimensional tolerance in hole, and cutter arbor and tool bit clamping are unstable, and the downthehole wall of processing out is coarse, can not reach the requirement of smooth finish, leads to the problem that machining efficiency is low, the utility model provides a boring cutter for work piece back bore hole, its concrete technical scheme is as follows:
the boring cutter for boring the back of the workpiece comprises a cutter bar, wherein one end of the cutter bar is provided with a connecting groove, the connecting groove is an I-shaped groove or a dovetail groove, a guide rod is clamped with a non-edge end of a cutter head through the I-shaped groove or the dovetail groove, and the cutter bar is connected with the cutter head to form a structure with an L-shaped cross section.
Further limiting, limiting concave points are arranged on the inner surface of the I-shaped groove or the dovetail groove, and limiting convex blocks correspondingly connected with the limiting concave points on the I-shaped groove or the dovetail groove are arranged at the non-knife-edge end of the knife head.
Further limiting, a pin shaft hole is formed in the non-knife-edge connecting end of the knife head, and the non-knife-edge connecting end of the knife head is connected into the connecting groove in the knife bar through a pin shaft penetrating through the pin shaft hole.
Further limiting, the cutter bar is cylindrical, and the ratio of the cross section circle diameter of the cutter bar to the length of the cutter bar is 1: 3-5.
Further, the length of the cutter bar is 200-300 mm.
Further defined, the cutting head is a 45 ° cutting head.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model is used for boring cutter of work piece back bore hole, its cutter arbor is connected with the tool bit and is formed the structure that the cross section is the L type, and the length of cutter arbor and tool bit is all longer, and this kind of structural design makes boring cutter can bore when carrying out the bore hole to the work piece back and targets in place, reaches the designing requirement in hole, and the machining precision is high.
2. The connecting groove is an I-shaped groove or a dovetail groove, the non-edge connecting end of the boring cutter is clamped tightly through an I-shaped groove or a dovetail groove structure, a limiting concave point is arranged on the inner surface of the I-shaped groove or the dovetail groove, a limiting convex block corresponding to the limiting concave point on the inner surface of the I-shaped groove or the dovetail groove is arranged on the non-edge connecting end of the cutter head, and the shaking of the boring cutter in the boring process can be reduced through the matched connection of the limiting concave point and the limiting convex block.
3. The utility model is used for boring cutter of work piece back bore hole, the one end of its cutter arbor is provided with connecting groove, in the non-edge of a knife link joint connecting groove of tool bit or the non-edge of a knife link of tool bit through the round pin hub connection who passes the round pin shaft hole in the connecting groove on the cutter arbor, adopt this kind of connected mode can increase the steadiness of tool bit, the tool bit can not produce when the bore hole and rock, can guarantee the smooth finish of hole inner wall, does not need follow-up manual work to polish and handles, machining efficiency is high.
Drawings
FIG. 1 is a schematic structural view of the boring tool of the present invention;
fig. 2 is an axial view of the boring tool of the present invention;
wherein, 1-cutter head and 2-cutter bar.
Detailed Description
The technical solution of the present invention is further explained below with reference to the drawings and examples, but the present invention is not limited to the embodiments explained below.
Example 1
The boring cutter for boring the back of a workpiece comprises a cutter bar 2 and a cutter head 1 connected to one end of the cutter bar 2, wherein a connecting groove is formed in a non-cutter-edge connecting end of the cutter head 1, the connecting groove is an I-shaped groove, 4 limiting concave points are formed in the inner surface of the I-shaped groove, a limiting convex block corresponding to the 4 limiting concave points in the inner surface of the I-shaped groove is arranged at the non-cutter-edge connecting end of the cutter head 1, and the shaking of the boring cutter in the boring process is reduced through the matching connection of the limiting concave points and the limiting convex blocks; the inner wall of the connecting groove is connected with a jaw, the non-knife-edge connecting end of the tool bit 1 is provided with a jaw corresponding to the connecting groove, the tool bar 2 is connected with the tool bit 1 to form an L-shaped cross section structure, the tool bar 2 is a cylindrical metal iron rod, the non-knife-edge connecting end of the tool bit 1 is clamped in the connecting groove of the tool bar 2, the diameter of the tool bar 2 and the cross section circle is 70 mm, and the length of the tool bar 2 is 260 mm; the tool bit 1 is a 45-degree tool bit, and the length of the tool bit 1 is 60 mm.
The boring method for boring the back surface of the workpiece by using the boring cutter comprises the following steps:
(1) clamping the cutter head 1 in a connecting groove on the cutter bar 2 through a clamping jaw, and then connecting the non-connecting groove end of the cutter bar 2 on a processing locomotive;
(2) and starting the machining locomotive to enable the L-shaped boring cutter to move to the position of a hole to be machined along the back surface of the workpiece, enabling the cutter head 1 to be vertical to the cutter bar 2, starting boring, and slowly adjusting the feeding of the boring cutter until boring is completed.
The connection means not described in this embodiment are all the connection means commonly used in the art.
Example 2
Different from the embodiment 1, in the boring tool for boring the back surface of the workpiece, the cross-sectional diameter of the tool bar 2 is 60 mm, and the length of the tool bar 2 is 200 mm; the length of the tool bit 1 is 30 mm. The rest is the same as in example 1.
Example 3
The boring cutter for boring the back of the workpiece comprises a cutter bar 2 and a cutter head 1 connected to one end of the cutter bar 2, wherein a non-edge connecting end of the cutter head 1 is provided with a connecting groove which is a dovetail groove, the inner surface of the dovetail groove is provided with 6 limiting concave points, the non-edge connecting end of the cutter head 1 is provided with limiting convex blocks corresponding to the 6 limiting concave points on the inner surface of the dovetail groove, and the swinging of the boring cutter in the boring process is reduced through the matching connection of the limiting concave points and the limiting convex blocks; the cutter bar 2 is connected with the cutter head 1 to form a structure with an L-shaped cross section, the cutter bar 2 is a cylindrical metal iron bar, a pin shaft hole is formed in the non-knife-edge connecting end of the cutter head 1, a corresponding pin shaft hole is also formed in the inner wall of a connecting groove of the cutter bar 2, the non-knife-edge connecting end of the cutter head 1 is connected into the connecting groove of the cutter bar 2 through a pin shaft penetrating through the pin shaft hole, the cross section diameter of the cutter bar 2 is 80 mm, and the length of the cutter bar 2 is 300 mm; the tool bit 1 is a 45-degree tool bit, and the length of the tool bit 1 is 80 mm.
(1) Connecting the cutter head 1 in a connecting groove on the cutter bar 2 through a pin shaft, and then connecting the non-connecting groove end of the cutter bar 2 on a processing locomotive;
(2) and starting the machining locomotive to enable the L-shaped boring cutter to move to the position of a hole to be machined along the back surface of the workpiece, enabling the cutter head 1 to be vertical to the cutter bar 2, starting boring, and slowly adjusting the feeding of the boring cutter until boring is completed.
The connection means not described in this embodiment are all the connection means commonly used in the art.
Example 4
Different from the embodiment 4, in the boring tool for boring the back surface of the workpiece, the cross-sectional diameter of the tool bar 2 is 75 mm, and the length of the tool bar 2 is 280 mm; the tool bit 1 is a 45-degree tool bit, and the length of the tool bit 1 is 50 mm. The rest is the same as in example 3.

Claims (6)

1. The boring cutter for boring the back of a workpiece comprises a cutter bar (2) and is characterized in that a connecting groove is formed in one end of the cutter bar (2), the connecting groove is an I-shaped groove or a dovetail-shaped groove, the cutter bar (2) is connected with the non-cutter-edge end of a cutter head (1) in a clamping mode through the I-shaped groove or the dovetail-shaped groove, and the cutter bar (2) is connected with the cutter head (1) to form a structure with an L-shaped cross section.
2. The boring cutter for boring on the back of a workpiece as claimed in claim 1, characterized in that the inner surface of the I-shaped groove or the dovetail groove is provided with a limit concave point, and the non-edge end of the tool bit (1) is provided with a limit convex block correspondingly connected with the limit concave point on the I-shaped groove or the dovetail groove.
3. The boring tool for boring a back surface of a workpiece according to claim 1, wherein the non-edge connecting end of the tool bit (1) is provided with a pin hole, and the non-edge connecting end of the tool bit (1) is connected in the connecting groove of the tool holder (2) by a pin passing through the pin hole.
4. The boring tool for boring the back of a workpiece according to any one of claims 1 to 3, wherein the tool bar (2) is cylindrical, and the ratio of the circular diameter of the cross section of the tool bar (2) to the length of the tool bar (2) is 1: 3-5.
5. The boring tool for back-boring a workpiece according to claim 4, wherein the length of the tool bar (2) is 200 mm to 300 mm.
6. A boring tool for back boring of workpieces according to claim 1, characterized in that the tool head (1) is a 45 ° tool head.
CN201922417869.7U 2019-12-27 2019-12-27 Boring cutter for boring on back of workpiece Active CN212217117U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922417869.7U CN212217117U (en) 2019-12-27 2019-12-27 Boring cutter for boring on back of workpiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922417869.7U CN212217117U (en) 2019-12-27 2019-12-27 Boring cutter for boring on back of workpiece

Publications (1)

Publication Number Publication Date
CN212217117U true CN212217117U (en) 2020-12-25

Family

ID=73901613

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922417869.7U Active CN212217117U (en) 2019-12-27 2019-12-27 Boring cutter for boring on back of workpiece

Country Status (1)

Country Link
CN (1) CN212217117U (en)

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